One Set of 100pcs contains

• 3.5 x 16mm - 20 pieces 
• 3.5 x 25mm - 20 pieces
• 4 x 30mm - 20 pieces
• 4 x 40mm - 20 pieces
• 4 x 50mm - 20 pieces

Box Size - 129mm x 66.2mm x 22mm

• Superior Quality: Made from premium carbon steel, plated with yellow zinc. These screws are built to last, ensuring long-term performance and durability.
• Surface Treatment: Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility.
• Lubrication: Patented lubrication, designed to enhance screw insertion time and provides greater resistance to corrosion.
• Resistance: 40° deep single thread to provide a secure fixing with high pull-out resistance
• Versatile Use: Hardwood, Softwood, Chipboard, MDF, Plastic, Thin Sheet Metal and More!